The modern Persian form of Ahura Mazda, the Good Spirit and Supreme God of the Avestic or Zoroastrian religion of the ancient Iranians and modern Parsees.
He was the supreme god of the Persians during the period of the great kings, and the Creator of all good creatures.
As a deity he stands far above both Hindu and Babylonian ideals and approaches the Judaeo-Christian conception of Jehovah.
He is represented as a crowned and bearded figure in a winged circle above the head of King Darius.
New Catholic Dictionary